Savitch, W. J. (1977). Recursive turing machines. International journal of computer mathematics, 6(1), 3-31. https://doi.org/10.1080/00207167708803124
Citace podle Chicago (17th ed.)Savitch, Walter J. "Recursive Turing Machines." International Journal of Computer Mathematics 6, no. 1 (1977): 3-31. https://doi.org/10.1080/00207167708803124.
Citace podle MLA (9th ed.)Savitch, Walter J. "Recursive Turing Machines." International Journal of Computer Mathematics, vol. 6, no. 1, 1977, pp. 3-31, https://doi.org/10.1080/00207167708803124.
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